| 单词 | parfocality | 
| 释义 | Definition of parfocality in English:parfocalitynoun ˌpɑːfəʊˈkalɪti Optics 
 Origin1950s; earliest use found in Science. From parfocal + -ity; compare -ality. Definition of parfocality in US English:parfocalitynounˌpɑːfəʊˈkalɪti Optics 
 Origin1950s; earliest use found in Science. From parfocal + -ity; compare -ality.  | 
	
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